Coal saver



20 will cause a complete combustion of the coal By employing salt in the mixture a Patented Feb. 12, 1924. 1,483,528

"unrrED STATES PATENT OFFICE.

' WILIIIAM H. STIEFEL, OF ANGOLA, INDIANA.

COAL SAVER.

Application filed October 17, 1923. Serial No. 669,116.

T all 'whmn it may concern great deal of soot andblack smoke are pro- Be'it known that I. VILLTAM H. .STInrnL. duced and carried through the fines with a citizen of the United States, and a residentsome of it being lost in the atmosphere while of Angola, in the county of Steuben and the remainder collects upon the sides of the 45 State of Indiana, have invented certain new furnace walls and upon the flue pipes. The

.and useful Improvements in Coal Savers, of soot and black smoke are unconsumed carwh'ich the following is a specification. bon and form the best heat units of the coal This invention relates to a composition of and thereby by lack of proper combustion matter for aiding in a more complete comthese heat units are lost in the consumption 50 bustion of coal. of the coal. The soot collecting upon the An object of the invention is the prov interior walls of the furnacetends to insusion of a composition of matterwhich when late such walls against the passage of heat employed as an aid in the combustion of and this is particularly truein' the boilers coal, will not only provide for an economy of hot water furnaces and in whichthe soot 55 I in the coal but produce brighter and hotter covered boiler pipes do not receive the maxifires and. likewise eliminate clinkers and mum of heat.- soot. i In the use of my composition of matter A further object of the invention is the the soot is entirely consumed, materially provision of a composition of matter which raising the heating value of the coal. 69

. by supplying the necessary elements to cause cleaner. hotter and more snappy tire is had. consumption of the soot and smoke; oxalic acid aids in thc'consumption of the In carrying; out my invention. I prepare soot either singly or in combination with the composition of matter in small quantithe salt when dissolved in water. It has the ties such as five pounds of common salt, effect of causing the coal to burn more three ounces of oxalic acid andsutlicient slowly but at the same time. since it a'idsin lamp black to color the composition black. the combustion of gaseswhich are ordi -I 'lhc' iiwredicnts are thorou hl Y mixed and naril lost thmu h the chimne s a more 2-- r 1" l 4 placed in air-tight containers for distribuintense fire is produced. tion to the public. \Vhat I claim is:

\Vhen it isdesired to use the same for 1. it composition of matter comprising aiding in the combustion of coal, the confive pounds of common salt, three ounces of tents of the package,'which contains the inoxalic acidand lamp black sufticient to color 76 gredients in the proportions noted above, is the composition black. 1

dissolved in fifty gallons of water and this 2. A composition of Ynatter comprising is sutlicient to spray two tons ot coal. It five pounds of common salt, three'ounces must be borne in mind that the coal should oxalic acid. suiticient lamp' black to color the be sprayed just before placing the same inmixture of salt and oxalic acid black, and theli furnace in order to obtain the best,refifty gallons of water.

' In the ordinary consumption of coal, 8. WILLIAMII. STIEFEL. 

